28865562 has 16 divisors (see below), whose sum is σ = 62979552. Its totient is φ = 8747120.

The previous prime is 28865537. The next prime is 28865563. The reversal of 28865562 is 26556882.

It is not an unprimeable number, because it can be changed into a prime (28865563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218613 + ... + 218744.

It is an arithmetic number, because the mean of its divisors is an integer number (3936222).

Almost surely, 2^28865562 is an apocalyptic number.

28865562 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28865562 is an abundant number, since it is smaller than the sum of its proper divisors (34113990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28865562 is a wasteful number, since it uses less digits than its factorization.

28865562 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437373.

The product of its digits is 230400, while the sum is 42.

The square root of 28865562 is about 5372.6680522809. The cubic root of 28865562 is about 306.7561928809.

It can be divided in two parts, 2886 and 5562, that added together give a palindrome (8448).

The spelling of 28865562 in words is "twenty-eight million, eight hundred sixty-five thousand, five hundred sixty-two".